Degradation promoter of biodegradable resin molded body, and use thereof

Abstract

An object of the present invention is to provide a technique for increasing the biodegradation rate of the biodegradable resin molded body in nature by promoting degradation of a biodegradable resin molded body containing an oxidative degradation agent.The degradation rate of the biodegradable resin molded body containing an oxidative degradation agent can be significantly increased by allowing both the biodegradable resin molded body and a chloride salt to be present at the time of disposal of the resin molded body.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is related to co-pending application: “BIODEGRADABLE DISPOSABLE HAND WARMER” filed even date herewith in the name of Atsushi Matsuo, as a national stage application of International Application No. PCT / JP 2011 / 057380, filed Mar. 25, 2011, which application is assigned to the assignee of the instant application and which co-pending application is also incorporated by reference herein.TECHNICAL FIELD[0002]The present invention relates to a degradation promoter of a biodegradable resin molded body containing an oxidative degradation agent, the degradation promoter being capable of promoting the degradation of the biodegradable resin molded body. The present invention also relates to a biodegradable product having excellent biodegradability. Further, the present invention relates to a degradation method of a biodegradable resin molded body containing an oxidative degradation agent, the method being capable of efficiently degr...

AI Technical Summary

Benefits of technology

[0023]According to the degradation promoter of the present invention, the degradation of a biodegradable resin molded body containing an oxidative degradation agent can be effectively promoted. Therefore, biodegradation can be accelerated without causing environmental pollution when the biodegradable resin molded body is disposed in landfills or in fields or mountains after use.

[0024]Further, when the degradation agent of the present invention is added to a resin molded body, the degradation of the resin molded body is promoted at the time of disposal, and the resin molded body is rapidly depolymerized to an extent such that the resin molded body can be used by microorganisms. Thus, rapid spontaneous degradation is ensured without resulting in an adverse effect on the environment.

Problems solved by technology

However, these resin molded products are used and disposed in large amounts; the disposal of such products is a big problem.

For example, there is a problem such that the incineration disposal of the resin molded body generates poisonous gas.

Moreover, since petroleum-based resin has hydrolysis resistance, the resin molded body is not biodegraded in soil when disposed in landfills or in fields or mountains, thus resulting in an adverse effect on the environment.

The hydrolyzable biodegradable resin is known as an earth-friendly material; however, it is known to have low formability compared to petroleum-based resin.

Further, since the biodegradable resin is easily depolymerized by hydrolysis, such resin has poor durability, strength, and heat resistance.

Therefore, in the conventional technique, the use of the biodegradable resin in place of petroleum-based resin is limited to specific product fields.

Thus, the degradation agent is attracting great attention.

However, although it is important for waste treated in landfills, etc., to increase the degradation rate to reduce the burden on the environment to the extent possible, a technique of improving the degradation rate of a biodegradable resin molded body containing such a degradation agent has not yet been fully studied.

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